Glinting Orb

@smith_john12619 @clashreport It's a Type-56 and some East German Kalashnikov, but do you think the general audience of this post cares?

@clashreport That's a Type-56. Stop lying

Iranian state TV airs footage of an IRGC instructor giving the public a basic AK-47 assault rifle use tutorial.

She is sleeping So daddy is tweeting

It is well past time for total tick death.

@WillyOS15 @nostalgicfile It's a cover of Home - Resonance: youtu.be/3G96kSeHoOg

@nostalgicfile Off-topic but whats the tracks name? Been hearing here & there but no info on the artist~

I want this timeline back

@joshu @lauriewired My impression is that it depends. With raw image files, you can probably get pretty close, but with JPEGs, and especially with videos, a lot of information tends to get lost in compression.

@lauriewired can this be fixed in software?

Spend enough time in any field/hobby, and you’ll start to develop taste for really subtle things. A weird one I picked up (without particularly trying) is lenses + image sensors. Every camera sensor “emulates” the concept of what’s called a Sensiotmetric curve. It’s a whole field that studies light-sensitive materials. On digital, linear sensors, it’s up to the camera manufacturer to choose the curve. If I had to guess, once you exclude smartphones, ~75-80% of youtube is filmed on Sony, often with Sigma lenses. Personally I can’t stand it; Sony has this green tint (esp in the noise + the whites), and modern photography lenses are too good! Much sharper than the human eye can resolve naturally. There’s a reason why so many DoPs purposefully “de-tune” lenses in hollywood. Canon is usually pretty nice, not overly sharp, but a little too red in the skin. Panasonic is decent, but leans quite magenta for some reason. Blackmagic (which I’m biased/partial to) has this interesting black crush which is noticeable. I hesitate to call it “filmic” because that term is overused/cringe…but admittedly the dynamic range *is* a bit film-y. RED cameras tend to look nice...a little sharp…but you don’t see them a lot on youtube. Makes sense; usually at that level you’re doing more commercial work. And then of course there is ARRI. Obviously the best, but who has that? ;)

@_MDV_ @astro_Pettit The photos are the product of the spectral response curves of Red, Green, and Blue pixels, differentiated by their Bayer color filters. The camera doesn't capture continuously across wavelengths, but three "curves." Attached is one example of a Camera + IR filter + Bayer.

@GlintingOrb @astro_Pettit Near IR has a much larger bandwith than visible light, so shifting only without compression of frequencies is not enough to “fit” into visible spectrum.

Somewhere over Mongolia. The deserts of Mongolia are striking from orbit. I am awed every time there is an orbit path overhead. This photo is in near infrared where the normal color spectrum is shifted “down” into the infrared region so the colors we are used to seeing are applied to where we cannot perceive. Nikon IR modified Z9, Nikon 70-200mm f2.8 lens, 1/6400 sec, f11, ISO 500, Photoshop adjusted (R-B color swap, saturation, contrast).

@_MDV_ @astro_Pettit I don't know how his specific camera is, but similar cameras tend to have the original red correspond to shorter near-infrared/edge of visible red, and green and blue the longer near-infrared light. He mentioned color swapping, so the red and blue are reversed here.

@astro_Pettit Is the frequency of the IR “colors” just schifted up 1:1 or is it also compressed so a bigger IR freq. range fits into visible bandwith.?

@fivegeedubya @fleshsimulator @eigenrobot @Putin_Hater420 Even the first KH-11 satellite, launched in December 1976, used CCDs for imaging.

@fleshsimulator @eigenrobot @Putin_Hater420 The biggest difference between the 1980 view and todays view is the sensor technology is simply that much better, in 1980 that was still a cathode tube. Now you can have arrays of megapixel CCDs creating gigapixel resolution from far IR to extreme UV.

alien technology shit for those of you not familiar NRO is a cousin of NSA, is existence only publicly revealed in 1992. to understand their competence, consider this anecdote about a time NASA needed a new satellite

@Truthful_ast <130 Wh/mile, <81 Wh/km (rough energy expended walking)

I wonder how much electricity I’ve generated while walking in Japan 🤔

@saffronett @LowResCryptid @uncledoomer The mention of the Air Force also reminded me of this document about 2.4m diameter mirrors, being the diameter of Hubble, and possibly past/present reconnaissance satellites. The two NRO mirrors donated to NASA were around 2.4m in diameter as well. forum.nasaspaceflight.com/index.php?acti…

@LowResCryptid @uncledoomer But the telescope was still partially owned by the Air Force, and it has a super fast slew rate (much faster most observatories). My understanding is that it's so they use it to track other satellites from Earth.

cold war spy satellites were insane because it was before digital cameras. the satellite would shoot film images, then jettison a little capsule that would re enter the atmosphere with the undeveloped film inside, parachute down, and be caught mid air by a C130.

@saffronett @LowResCryptid @uncledoomer Probably this story: planetary.org/articles/nasa-… en.wikipedia.org/wiki/2012_Nati…

@pintleinjector @AJamesMcCarthy Phone cameras, for example, may record light through red, green, and blue wavelength filters. Astronomical images may map certain wavelengths to red, green, and blue respectively, even if those wavelengths would not appear as red, green, and blue to us.

@pintleinjector @AJamesMcCarthy I believe it is not fundamentally different. Whether a phone camera, Hubble, or JWST, the photos are captured by light sensors through different filters that let in certain wavelengths. The difference with JWST being out of the visible spectrum is which wavelengths are used.

Google still gets this wrong. Hubble photos gets their color from essentially the same methods any digital camera does. Technically all camera sensors are B&W, it’s the integrated optical filters that allow them to see color. By adding the context that it’s how all digital photos work, it would completely change this answer. I’ve processed Hubble photos myself, and I know this is wrong. Remember that when you google something, and see an answer that appears to contradict something a SME is saying, you might be missing important context.

@JochyMiranda @Lalala67592032 @OSINTWarfare @YouTube Near the 5 minute mark in the video, albeit faint from the distance to the camera, it sounds like you can hear the whistle.

@Lalala67592032 @OSINTWarfare Incredible Sukhoi Su-57 display - Dubai Airshow 2025 youtu.be/aA0Hm_vK0_M?si… vía @YouTube

Footage of one of the recently delivered 5th Gen Su-57E Multirole Fighters of the Algerian Air Force (AAF), flying over Algeria, possibly near Oum El Bouaghi.

@JochyMiranda @Lalala67592032 @OSINTWarfare It seems it may come from the intakes.

@Lalala67592032 @OSINTWarfare Su57 engines are same of the SU 35 until some days ago first with the new engines in test, it only sounds like that in pro Russian videos. Check videos from air show last year, no SCI fi whistle sound.

@DutchSpace @ShuttleAlmanac The following post shows a wider view of the presentation: x.com/i/status/18546…

@ShuttleAlmanac Someone took a picture during an Air force presentation clearly shows it's a Maxar image (now Vantor)

Meanwhile, in China, their version of the X-37B seems to have launched again, 4th time. Image below is the only public (in this case on-orbit) image we have so far...

@DutchSpace There is some ground-based imagery of it: space.com/china-space-pl…

@Stay_Hydrated47 @tengusan09 @MarkSerbu The mag release and trigger guard/area don't look quite like a Type-63 to me.

@tengusan09 @MarkSerbu Technically not a sks but an unholy abomination ak/sks hybrid made by China. Type 63 if you want to read more about it

These are two very different guns, but who knows what they have in common?

JUMPSEAT, the United States’ first-generation, highly elliptical orbit (HEO) signals-collection satellite, has recently been declassified! Learn more about its history here: nro.gov/news-media-fea…